103204613 has 2 divisors, whose sum is σ = 103204614. Its totient is φ = 103204612.

The previous prime is 103204609. The next prime is 103204643. The reversal of 103204613 is 316402301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61434244 + 41770369 = 7838^2 + 6463^2 .

It is a cyclic number.

It is not a de Polignac number, because 103204613 - 2² = 103204609 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103204643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51602306 + 51602307.

It is an arithmetic number, because the mean of its divisors is an integer number (51602307).

Almost surely, 2^103204613 is an apocalyptic number.

It is an amenable number.

103204613 is a deficient number, since it is larger than the sum of its proper divisors (1).

103204613 is an equidigital number, since it uses as much as digits as its factorization.

103204613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 103204613 is about 10158.9671226951. The cubic root of 103204613 is about 469.0650085751.

Adding to 103204613 its reverse (316402301), we get a palindrome (419606914).

The spelling of 103204613 in words is "one hundred three million, two hundred four thousand, six hundred thirteen".